Gas tank help

a new tank will be great investment when you can afford it. remember if this tank is original or even replaced like 15 yrs ago, it will rust from BOTH sides and you will probably find some pin holes, seems like they can appear anywhere, even on upper corners. like he said get new pickup for it, it will have new filter that will help. an extra fuel filter just before the fuel pump can be a good idea TOO. your tank to engine fuel line fuel line can get pretty rust also.